FIELD: electric engineering.
SUBSTANCE: invention is related to dischargers for overvoltage protection. According to invention, discharger comprises at least one varistor unit (1); two limit grips (3), one strengthening element (9), which maintains varistor unit (1) in stressed condition at limit grips (3), and at least one fixture (13), which holds strengthening element (9) in hole (11), passing through at least one of limit grips (3). Fixture (13) is preferably wedge that splits strengthening element (9) and presses it to external walls of through hole (11). According to another version in through hole (11) there are two or more strengthening elements strengthened with glass fiber maintained, and wedge between these strengthening elements provides for holding of strengthening elements with tight fit in limit grip in area of through hole (11).
EFFECT: low cost and suitability for serial production.
15 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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| SURGE ARRESTER | 1997 |
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| DISCHARGER FOR OVERVOLTAGE PROTECTION | 1995 |
|
RU2145743C1 |
